January 22, 2014 5:13am ESTJanuary 22, 2014 5:13am ESTRob Ryan isn't an NFL head coach because ... his hair? That's one theory making the round, and it's a theory that makes sens to Rob's twin brother, Rex, the clean-shaven coach of the Jets.Rob Ryan(AP Photo)

Rob Ryan isn't an NFL head coach because ... his hair? That's one theory making the round, and it's a theory that makes sens to Rob's twin brother, Rex, the clean-shaven coach of the Jets.

Rex told reporters at the Senior Bowl this week that Rob's flowing locks might be a turn-off to those who do the hiring. In Rex's mind, It certainly can't be because of his work as the Saints' defensive coordinator.

“You tell me one other reason why he doesn’t have a (head-coaching job) right now with the kind of job he did,” Rex said, according to the New York Post. “Maybe that’s it. I told him, ‘Dude, how about you go get a haircut? It makes no difference.’ I said, ‘You can wear the Fu Manchu (mustache/goatee) if you’re bald.’

“I can’t explain it. Is it the hair? I don’t know. I’m trying to get him to get a haircut. Hopefully, this is one of the things that motivates him to do so.”

The only open head coach position right now is in Cleveland, one of Rob's many stops in his coaching career. Would he really ditch the trademark 'do to go back there?